Press.



J. G. PIDDYMENT..

PRESS.

IIIIIIIIIIIIIIIII ov. 30,1908. 940,961 Patentedv Nov. 23,1909. 5 SHEETS-SHEET i.

i plV J'. c. FIDDYMBNT.

PRESS.

, A-PPLIOATION FILED HOY. 30, l1908. Y 940,961. Patented Nov.23,19o9. I 6 sums-SHEET z.

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PRESS.l APPLIGATION FILED Nov. so, 1906.

Ptented Nov. 23,1909.

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. 0. PIDDYMBNT.

PRESS. APPLICATION FILED NO-V. 30, 1908.

'Patnted Nov. 23.1909.

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C. FIDDYMENT.

PRESS.

APPLIUATION FILED Nov. so, 190s.

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WINRWWI m1 .a citizen of the United States, residing "UNITED *STATES rxrnnrorrion.

' JOI-IN C. FIDDYMENT, 0F LIOCKPORT, ILLINOIS, ASSIGNOR TO CONTINUOUS EXTRAGTING PRESS CORPORATION,'OF NEW YORK, N. Y., A CORPORATION 0F VIRGINIA.

PRESS.

To all whom 'it may concern.' n

Be it known that I, J oHN C. FIDDYMENT, at Lockport, in the county of Will andState of Illinois, have invented a certain new and useful Press, of which the following is a specification, reference being had therein to y the accompanying drawing. e

This invention relates to presses of the class known as expressing presses in which a screw is rotated within the press chamber to mash and compress the'material and exert the requisite pressure thereon to force the liquid from such material through suitable voutlets in the wall of thepress chamber.l

The press is especially designed for extracting the liquid from vegetableseed, cotton seed, castor beans, nuts of various kinds, fish, brewers products, and, in fact any ma-` terial containing liquid capable of being expressed therefrom when subjected to pres- Sure.

providemeans whereby, when material is fed too rapidly or` in too great a quantity into the press, the excessive pressure within the press chamber and the strain on the press chamber, and other mechanism of the press will be automatically relieved. Another object ofv the invention is to provide a novel initialV feed whereby 'the mate-4 rial is primarily introduced into the ApressA under pressure, in connection with means whereby such pressure or -the force of .the feed and the rapidity ofthe samemay be regulated to suit conditions;l

-Another object of the invention is to provide novel checking-means acting to hold back the incoming material at intervals and assist the main expressing screw to take u the material and advance thesame throng the press chamber. f

A further object of .the invention is to provide ya practical and durable construction of press chamber, whereby-the bars or slats thereof are securely held in fixed osi tion; also straining means so,constructe and arranged, relatively to' the wall of the press chamber that the same'may be removed and `replaced orrenewed.

A further object of the invention isl to One object of the present invention isto ingthe straining means.

specineatien er Leners Patent. Patented Nov. 23, 1909. Application mea November 30,1908.' serial No. 465,154.

tion', combination and arrangement of parts l.

herein claimed.

In the ,accompanying drawingsz-Figure 1 is a side elevation of a press embodying the present invention.

fully` set forth, illustrated and larged detail section through the Wall of the press, chamber showing one of the relief valves. Fig. 3 is a vertical'longitudinal section through the press showing the main expressing screw,the checking device, etc.L

Fig. 4 is'a ydetail plan view partly lin section, showing the thrust bearing. 1Fig.A 5 is an end elevation of the press 4looking toward the receiving end thereof, withthe adjacent portion of the press frame omitted. Fig. 6

is a detailperspective'view of the end thrust bearing ring. Fig. 7 f isJacross-fsection on the .line 7-7 of Fig. 3. Fig. 8 is acrosssection on the ,-line 8,-,8 of Fig, 3. Fig.e 9

is a detail .perspective view o f the stationary cam. Fig. 10 is aperspective view showing the check together vwith the anges in c'on- -n-ectionwith` whichv the same coperates.

Fig. 11 is a detail perspective viewk illustratingthe arrangement .of feed throat leading -into thespace in which, the expressing screw works.` Fig., 12 is anenlarged vertical crosssection through., thepress chamber on the linef12-12ofFig. 13. yFig. 13 a'vertical vsectionthrough the same vonl the line 13e-13 LofFig. 12. Fig. .14 is a detail perspective lView of a portlon ofl one ofthe bandsor hoops ofthe press chamber, Fig. 15 is ,a detail perspective View, of one of the spacing blocks. Fig. 16 is a plan view of aportion of the inner Wall of the press chamber, show- Fig. 17 is a crosssection through the same. Fig. 18 is a View similar to Fig. 16 showing a slightly ldifferent arrangement `of the straining means. I

.Fig 19 is a similar yView showing another arrangement of straining means. -Fig. 20 is a cross-section through Fig. 19.

Referring to the drawings, 1 designates the press chamber of'an expressing press, and 2 the main shaft'which passes lengthfrom Vthe liquid, which finds its way outward throughopenings 3 in the wall of the press chamber; these openings may be of any de-y sired size, shape and character.

The screw shaft 2 is driven in any suitable way, as by means'lofthel gearing 4 and the material is fed into the press chamber through a suitable hopper 5, while the several parts of the press may be mounted on a suitable frame 6. y

In carrying out the present invention, the wall of the press chamber is provided at on'e or more po nts with openin 7 of a size adapted to receive and have ztcd therein a valve ca e or casing 8 which may be threaded or ot erwise fastened in place as shown in Fig. 2. The inner end of this valve cage lies flush with the inner surface of the press chamber and is partially closed by an annular flange 9, leaving an o ening of the samesize as the inner end o the valve 10, the inner wall of the flange 9 being beveled, as shownat 11.

Projectin outward from the valve 10 is a stem 12 t e outer end portion of which works through a guide 13 in the form of a j cross bar held at a suitable distance from the outer surface of the ress chamber by rods or bolts 14, parallel w1th each other and fastened at their inner ends to the casing 8, as shown in Fig. 2. At an intermediate point in its length, the stem 12 is provided with a fixed vcross head 15 which normally bears against stops or shoulders 16, preferably consisting of nuts adjustable on the rods 14 .to permit the'valve to beadjusted so that when the cross head 15 and stops 16 are in contact with each other, the extreme inner face of the valve is just flush with the corresponding inner surface of the press vchamber wallso as not to form any obstruction whatever to the free passage of the material through the press chamber.

Sprlngs 17 are placedaround the rods 14 between the lguide 13 and cross head 15, and the tension of these springs is exerted to hold the valve inward. 'When however the pressure of the material within the press chamber becomes excessive, the valve 10 overcomes the tensionv of the springs l17,

whichv allows said valve to movev outward and permits a portion of the material to pass Nuts 18 on the movement of ,the valve 10. By the means hereinabove described excessive pressure within the press chamber is automatically relieved.

The hopper 5 communicates with and discharges into a feeder casing 19 which is disposed about horizontally as shown in Figs. 5, 7 and `8, and within said casing is a rotary initial feed screw 20, one end of which extends out `through the casing and carries a gear wheel 21 which meshes with and is driven by another gear wheel 22, interchangeable with other wheels of varying sizes so that by substitution, of gears any desired speed may be imparted to the feed screw 2O to force the material with any re'- quired rapidity into the press with which the casing 19 communicates through an inlet opening 23, (see Fig. 8) Within the casing 19 is located a bale 24 in the form of a fixed lug or projection, which holds the material from rotating with the screw, while the adjacent: portion of the flight or thread of. the screw is reduced in diameter, as shown in said figure, to allow for the said baille.

The expressing screw embodies the conicocylindrical body 25 which increases in size toward the discharge end of the press, and the spiral thread or multiple Hight 26, portions of which are reduced in diameter at intervals, as seen in Fig. 3, to allow for the location lof baffles 27 to prevent the mass of material from following the screw around while being acted on and advanced thereby. At its receiving end the screw 25 has fast thereon two parallel flanges 28 and 29'arranged at a distance from each other as best shown in Fig. 10.l The inner flange 28 is cut away at one side'to form a feed throat 30, which leads from the space between the two flanges, through the lnner flange into the press chamber space occupied by the expressing screw. Y In forming the feed throat 30 the flange 28 is beveled olf as shown at 31'so as to line up with the oblique face or wall 32, provided by leaving a part of the spaced between the innermost flights or threads 26 filled in as shown at 33. 1 n

Just opposite the feed throat 30, the flange` 29 is apertured to receive a check 'or gate 34 which is pivotally` connected to the flange 29 at 35, the axis on which the check swings being substantially radial to the shaft 2, as seen in Figs. 7. and 10. In cross section the check resembles a quadrant, as seen in Figs. 3 .and 10, having oblique divergent opposite yfaces or sides, so disposed that when the outer side is flush with' the outer side of the flange 29, the inner side extends obliquely across the space between the two flanges 28 and'29, as shown in Fig. 3, in which position the check acts to divert the materlal, and

force the same through the feed throat -30 into the press chamber proper, where it enters between the flights or threads of the expressing screw and is taken up and carried on. As the shaft 2 continues to revolve, the inner side of the check rides against the edge of a stationary abutment 36, which acts to i part of the machine.

lso

cirrosi swing the 'check outward until the inner side of said check lies flush with the inner surface of the outer flange 29. The abutment 36 not only acts to throw the check outward but it constitutes a back stop to hold the material still while the check or gate acts on .the material to force the same through the feed throat 30. Secured fast to the press chamber is a stationary cam 37 constructed and` arranged to act on the check or Vgate 34 at the proper timeto swing the same inward to the position shown in Fig. 3. Said cam may of course be mounted on any stationary The wall of the press chamber is shown in Figs. 12 and 13, as composed of parallel bars or slats having their opposing side faces diverging outwardly. In order to securely hold lthe said bars or slats, bands or hoops 38 are placed around the same at suitable'intervals and the bars 39 are heldrela tively to each other and the hoops Iby means of spacing blocks 40, each comprising a substan tially Wedge-shaped body as shown in Figs. 12 and 15, and anges 41 projecting from opposite sides of the outer and wider por` tion of the block. IThe 'wedge-shaped bodyA of the block fits between adjacent bars 39 as seen in Fig. 12, the flanges 41 lying between thebars and the inner surface of the adjacent 'band or hoop 38. The flanges 41 are oppositely notched as at 42. to permit the passage ofthe bolts 43 (see Fig. 12) which connect the bands or hoops-and bars and secure the press chamber structure together. To providefor setting the bolts 43 at any point around the hoops 38 the latter is provided with slots 44 through which said boltspass. These slots may be of any suitable length and are arranged to overlap as shown in Fig. 14, thus providing for setting the bolts at any point and at the same time avoiding weakening the hoops unnecessarily.

In order to provide for straining the material yand separating the liquid therefrom,

the inner surface ,of the press chamber Wall is channeled as shown in Figs. 16 and 17,

preferably in dove-tail form, and metal strips 45 are set into the channels, and-be ing of corresponding dove-tail shape in cross section, they are thus held securelyin place.

and yet capable of being easily removed. Fasteners such as screws 46'may also used tog hold the strips in place. Extending through;`

the wall in line with the' channelsl are ho l47 through which the liquid passes, while in the strips 4 5 are4 line with said openin perforated or provide with stralner openings of any desired gage. In 16- the strips areshown as extending-lengthwise o f the press chamber, `but they may extend` `shoulder 48 against which a corresponding shoulder on thek strainer rests as shown in Fig. 20, the strainer being circular and fitting within `said hole, and being held therein by a hollow cylindrical retainer 49, threaded into the hole, as shown.

By stralners may be readily-taken out and replaced or renewed ywhen worn out 'and thus the inner surface of the press chamber wall may be kept in vperfect working condition at small expense.

In actual work it has beenv found that there is an enormous endthrust von the shaft 2 and t-he press chamber 1. To-take care of this, theshaft 2 is provided with a seriesof the arrangement just described, the

bearing shoulders 50 in the form vof collars' fast on' said shaft, which are received in cor- ,responding bearing recesses in the machine frame, as shown in Fig. 4. To take the end thrust of the press chamber a thrustbearing ring 51 is employed,` the same having anA annular ange 52 which fits over the eXtreme edge ofv said chamber as shown in Fig. 3;.' The ring 51 has oppositely projecting lugs 53 which carry adjusting devicesv for the ring, each-consisting of a. set screw 54 threaded into the lug`53, with the head 55 thereof bearing against the 'frame 6 as shown in Fig. 4.'l By turning the screws 54 any looseness between the end of the press chamber and thev machine frame may be taken up, to give the proper bearing, and.

the screws may, then be made fast bymeans of jam-nuts A56. l

In connection with the feeder casing 19,-

itmay be stated that the same may be imperforate, or perforated or of slatted con-` struction to provide for the escape of liquid therefrom during the initial feeding opera# tion. f

1. In an expressing press, a press chamber'provided witha valved opening to al-` lowfforthe escape of a Vportion ofthe conipressed material forthe purpose of relieving excessive pressurewithin the press Chamber.

2.'.In an'expressing press, a press chamber providedfin the wall thereof 'with `one oi- 'more pressure relief openings, each of lwhich is controlled by a valve which oper? 'ates'automatica'lly f 3. In an expressing press, a press chamber provided at intervals in its lengthwith pressure relief openings, in combination with valve controlling said openings and adapted to be unseated vby excessive pressure ofthe lmaterial with-in the press chamber.

4. In an expressing press, the combination with the wall of the press chamber, of

means associated with said wall operating `25 the space between said to relieve the excessive preure of thejmaterial against said wall.

5. In an expressing press, a press chamber having an opemng through the wall thereof, a pressure-rehef valve controlling said opening, and means for regulating the degree of resistance of said valve.

6. In an expressing press, the combination with the press chamber, and the expressing screw, of a feed throat, and an osi cillatory Acheck or gate mounted on and carried around by said screw and operating to force material into said feed throat.

7. In an expressing press, the combination with the press chamber, andthe expressing screw, of a feed throat, a check or gate carried around by the screw, and means operating during the rotation of-said screw from the feed throat.

8. In an expressing press, a ress chamber, an expressing screw working therein, circumferential lianges rotating with said screw, means for feeding the material into flanges, and means moving around with said a es for intermittentlyr delivering charges o the material from said space to the expressing screw.

' 9. In an expressing press, a press chamber, an expr screw worklng therein,

spaced parallel ia-nges carried by said screw, one of said flanges having a feed throat, means moving around with said ianges for feeding material into the space between said fianges, and an oscillatory check or gate operatlng at intervals to force said material through the feed throat anddelver the same v to the expressing screw.

10. In an expressing press, a press chamber, an expressing screw working therein,

spaced flanges carried with said screw, oneV ber the `wall of which is provlded W1th outof said ila es being provided with a feed throat, a plvoted check or gate carried around by one of said flanges and movable k across the space between the flanges, a stationary abutment lying between said flanges and operating to swing the said check or gate in one dlrection, and means for swinging said check or gate in the reverse direc- 50. tion.

11. In an expressing press, a press chamber, an expressing screw working therein and rovided with a pushing face between the flights or threads thereof, parallel flanges '55 carried by said screw, one of said flanges having a feed throat, and a movable check or ate carried around by one of the flanges ang operating between said ianges to force the material through the feed throat into the path of said pushing face.

12. In an expressingl press, a press .chamber embodying parallel bars or slats with intervening V-shaped spaces, correspond,- ngly shaped spacing blocks interposed between said bars, and bands or hoops en.

to swing the check or gate towardand away ing means for holding the sai -circling the press chamber to hold the bars and blocks inplace. l

I 13. `In an expressing press, a press chamber embodying parallel bars or slats, spacing blocks interposed between said bars and 70 provided with flanges bearing against the outer sides of the bars, andbands or hoops encircling the press chamber and bearing against the flanges of the blocks.

14. In an expressing press, a press chamber embodying? parallel bars or slats, spacing blocks interposed between said bars and provided with flanges bearing against the outer sides of the bars and having notches, bands or hoops encircling the ress chamber and bearing against said anges, and fasteners connecting the barsand bands and lying in said notches.

15. In an yexpressing press, a press cham-'- ber embodying parallel bars or slats, spacg5 ing blocks interposed between said bars, bands or hoo s encircling the press chamber and provide with slots extending' in parallel planes and overlappingeach other, and fasteners connectin the bars and bands and 90 passing through sald slots.

16. In an expressing press, a press chamber the inside wall or surface of which is formed with channels, and openin .throughthe presschamber in line with sai channels, stralnerstrips lying flush within sald channels, and means for fastening said strips in position so thatthey may be removed.

17. In an expressing press, a press chamber having outlet opemngs therein and channels formed in thevinner surface thereof 1n line with said openings, and perforated strainer strips removably mounted 1n sald channels with their inner surfaces Hush with the inner surface of the press chamber.

18. In an expressingpress, apresschamf let openings for lthe liquid, strainers mount- A ed to cover. said openings and 11e Hush. with the inner surface of said wall and reta1n- 110 d stramers 1n 19. In an expressing press, t-he` comblnation with the press chamber, of a thrust bearing therefor embodying a thrust rlng agamst which the end of the ress chamber bears, and adjusting means or'said rlng.

20. .In an expressing press, the comblnation with the press chamber, of a thrust bearing therefor embodyingathrust ring, agamst which the end of the press chamber bears, and adjusting means ferk said ring consisting of one or more set' sere,itsvv inter "osed between said ringand a fixd'ipart o the machine. I v I 21. In an expressing press, the combination with the press chamber, of a thrust bearing therefor embodying a thrust ring against which the end of the press chamber bears, and adjusting means for said ring conslsting of one or more set screws interposed be- 23. In an expressing press, a press cham tween the ring and a stationary part of the ber. having recesses in the wall thereof, and machine, and means foi-'locking' said screws.v perforated metal screen sections held in said 22. In an expressing press, the combinarecesses and separated from each other by 1.3 tion with the press chamber, of a thrust portions of the press chamber walls. bearing therefor embodying a thrust ring In testimony whereof I affix my signature against which the end of the press chamber in presence of two witnesses. bears, a flange on said ring embracing the JOHN C.,FIDDYMENT.` presschamber, `and means for adjusting said Witnesses: Y ring toward and away from the end of the GERTRUDE M. GmswoLD, press chamber. FRANK Gr. HoDsKINs. 

